ML20041A177
| ML20041A177 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 01/04/1982 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| Shared Package | |
| ML20041A175 | List: |
| References | |
| NUDOCS 8202190221 | |
| Download: ML20041A177 (3) | |
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- y Consumem Power o id " "a"- a Nuclear Licensing AJrnanistr.utor Company General offices: 1945 West Parnali Road, Jackson, MI 49201 * (517) 788 1636 January 4, 1982 James G Keppler, Administrator Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-155 - LICENSE DPR BIG ROCK POINT PLANT - RESPONSE TO IE INSPECTION REPORT 81-16 IE Inspection Report No 50-155/81-16 dated December 4, 1981 transmitted two apparent items of noncompliance found at'the Big Rock Point Plant.
Item 2 in the Report requires a written response within 30 days. Our response to this violation is as follows:
Violation Technical Specification Section 6.8.1 states, " Written procedures shall be established, implemented, and maintained for all structures, systems, compo-nents, and safety actions in Big Rock Point Quality List."
Contrary to the above, on November 6, 1981, the Licensee failed to adhere to Standard Operating Procedure (SOP) 17, Main Steam System, in that power level was increased by control rod withdrawal while the turbine bypass valve was inoperable.
This is a Severity Level V violation.
Response to Violation While the turbine bypass valve was disabled, a single control rod was with-drawn one notch in order to maintain plant base load power level. Therefore, the procedure prohibiting a power increase if the turbine bypass valve is inoperable was not followed. Nevertheless, the safety significance of this violation is considered to be minimal.
Contrary to the hypothesis that operation of the turbine bypass valve is important to mitigate an accident resulting from an inadvertent continuous rod withdrawal, proper operation of oc1281-0035a142 A1AN 8 087 8202190221 820216 PDR ADOCK 05000155 O
6 James G Keppler, Administrator 2
Big Rock Point Plant January 4, 1982 the turbine bypass valve could, during such an event, mask the increase in reactor pressure to the high pressure scram setpoint. As analyzed in the FHSR, such an event is nevertheless terminated by a high flux reactor scram.
For this reason, Consumers Power Company believes that classifying this violation as a Level V is unjustifiably severe.
Corrective Action Taken and Results Achieved As a result of this event, the importance of being aware of and following procedures has been addressed to all Operations personnel by means of a memorandum. All appropriate personnel have reviewed the memorandum.
Corrective Action to Prevent Recurrence Since the procedure as written in Standard Operating Procedure 17 was consid-ered to be unjustifiable restrictive, it has been revised to allow power level changes when the turbine bypass valve is inoperable. This revised procedure is acceptable since the turbine initial pressure regulation system provides adequate control for minor pressure variations.
Date When Full Compliance Will be Achieved Full compliance with Technical Specification Section 6.8.1 was achieved with the revision of Standard Operating Procedure 17 and the issuance of a memorandum to all operations personnel emphasizing the importance of being aware of and following procedures.
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David P Hoffman Nuclear Licensing Administrator 4
CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement NRC Resident Inspector-Big Rock Point oc1281-0035a142
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.*f CONSUMERS POWER COMPAhT Big Rock Point Plant IE Inspection Report No 50-155/81-16 Response to NRC letter dated December 4, 1981 Docket No 50-155 License No DPR-6
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At the request of the Commission and pursuant to the Atomic Energy Act of 1954, and the Energy Reorganization Act of 1974, as amended, and the Commission's Rules and Regulations thereunder, Consumers Power Company submits our response to NRC letter dated December 4, 1981 uhich provides IE Inspection-Report No 50-155/81-16 and a Notice of Violation dated December 4, 1981.
Consumers Power Company's response is dated January 4, 1982.
CONSUMERS OWER COMPAhT By
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e R B DeWitt, Vice President Nuclear Operations Sworn and subscribed to me this 4th day of January, 1982.
Y llelen I Dempski, Notfry Public Jackson County, Michigan My commission expires December 14, 1981 l
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